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Testing the information-based trading hypothesis in the option market : evidence from share repurchases
Badshah, Ihsan Ullah; Koerniadi, Hardjo; Kolari, James W. - In: Journal of risk and financial management : JRFM 12 (2019) 4/179, pp. 1-11
research on this hypothesis to open-market share repurchases. Empirical tests showed that the implied volatility spread was not … implied volatility spread and subsequent stock return volatility around open-market share repurchase events. We concluded that … option traders have private information on the volatility of stock returns and superior information processing ability that …
Persistent link: https://www.econbiz.de/10012171287
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How informative are earnings forecasts?
Bruijn, Bert de; Franses, Philip Hans - In: Journal of risk and financial management : JRFM 11 (2018) 3, pp. 1-20
We constructed forecasts of earnings forecasts using data on 406 firms and forecasts made by 5419 individuals with on average 25 forecasts per individual. We verified previously found predictors, which are the average of the most recent available forecast for each forecaster and the difference...
Persistent link: https://www.econbiz.de/10011895745
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Net buying pressure and informed trading in the options market : evidence from earnings announcements
Badshah, Ihsan Ullah; Koerniadi, Hardjo - In: Journal of risk and financial management : JRFM 15 (2022) 2, pp. 1-9
trading around quarterly earnings announcements is either directionally motivated and/or volatility motivated. We found … volatility-motivated option trading, and our results suggest that this type of option trading could be motivated by hedging …
Persistent link: https://www.econbiz.de/10012818141
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Asymmetry and leverage with news impact curve perspective in Australian stock returns' volatility during COVID-19
Iqbal, Najam; Manzoor, Muhammad Saqib; Bhatti, Muhammad … - In: Journal of risk and financial management : JRFM 14 (2021) 7, pp. 1-15
This paper studies the effect of COVID-19 on the volatility of Australian stock returns and the effect of negative and … positive news (shocks) by investigating the asymmetric nature of the shocks and leverage impact on volatility. We employ a … than the GARCH model in estimating the volatility of the Australian stock returns. However, another interesting finding is …
Persistent link: https://www.econbiz.de/10012622818
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Non-parametric statistic for testing cumulative abnormal stock returns
Pynnönen, Seppo - In: Journal of risk and financial management : JRFM 15 (2022) 4, pp. 1-13
Due to the non-normality of stock returns, nonparametric rank tests are gaining accceptance relative to parametric tests in financial economics event studies. In rank tests, financial assets’ multiple day cumulative abnormal returns (CARs) are replaced by cumulated ranks. This paper proposes...
Persistent link: https://www.econbiz.de/10013168738
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Testing stock market efficiency from spillover effect of Panama leaks
Nasir, Adeel; Gherghina, Stefan Cristian; Mata, Mário Nuno - In: Journal of risk and financial management : JRFM 15 (2022) 2, pp. 1-23
On 3 April 2016, Mossack Fonseca provided the historically most significant leak of its shareholder’s data for owning offshore companies. Shareholders include many political and influential figures around the globe, which causes a moral hazard. The study analyses the effects of Panama leak...
Persistent link: https://www.econbiz.de/10012821618
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CEO duality : newspapers and stock market reactions
Caiffa, Marco; Farina, Vincenzo; Fattobene, Lucrezia - In: Journal of risk and financial management : JRFM 14 (2021) 1/35, pp. 1-18
This study aims to investigate the unsettled issue of the relationship between CEO duality and a firm’s value through the perspective of investors’ reaction to news which mention apical directors with a single role and Board Chair CEOs. With a unique and hand-collected database of 60,805...
Persistent link: https://www.econbiz.de/10012417728
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The unusual trading volume and earnings surprises in China’s market
Chong, Terence Tai-Leung; Wu, Yueer; Su, Jue - In: Journal of risk and financial management : JRFM 13 (2020) 10/244, pp. 1-17
This study examines the empirical relationship between unusual trading volume and earnings surprises in China´s A-share market. We provide evidence that an unusually low trading volume can signify negative information about firm fundamentals. Moreover, unusual trading volumes could predict...
Persistent link: https://www.econbiz.de/10012387154
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The effects of environmental regulation on the Singapore stock market
Huy Pham; Long Thang Van Nguyen; Vikash Ramiah; … - In: Journal of risk and financial management : JRFM 12 (2019) 4/175, pp. 1-19
This study examines the impact of environmental regulation on the Singapore stock market using the event study methodology. Several asset pricing models are used to estimate sectoral abnormal returns. Additionally, we estimate the change in systematic risk after the introduction of the carbon...
Persistent link: https://www.econbiz.de/10012171392
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Volatility in international stock markets : an empirical study during COVID-19
Chaudhary, Rashmi; Bakhshi, Priti; Gupta, Hemendra - In: Journal of risk and financial management : JRFM 13 (2020) 9/208, pp. 1-17
Predicting volatility is a must in the finance domain. Estimations of volatility, along with the central tendency … research is to analyze the influence of COVID-19 on the return and volatility of the stock market indices of the top 10 … volatility remains higher than in normal periods, signaling a bearish tendency in the market. The COVID variable, as an exogenous …
Persistent link: https://www.econbiz.de/10012384430